Transformers explode, knocking out power to thousands in Valley Glen, Sherman Oaks

LOS ANGELES - UPDATE: As of 10 p.m. all power has been restored. 

On a day that a heat wave pushed temperatures into the 90s in the San Fernando Valley, roughly 6,500 Los Angeles Department of Water and Power customers lost electricity Monday in the Valley Glen and Sherman Oaks areas due to possible explosions in underground electrical vaults.

Firefighters were sent to the 6000 block of North Fulton Avenue about 10 a.m. in response to reports of one or more possible explosions in underground electric vaults, according to the Los Angeles Fire Department.

No fire was found, but some smoke was reported in the area, LAFD reported. Footage from the scene showed one manhole cover had blown off.

"We had tree trimming going on and a palm fell on some wires resulting in some wires down on Ethel Ave. Live tension wires down on the ground and they are live. The fire department is here to protect the public," said LAFD Battalion Chief Daniel Curry. 

Get your top stories delivered daily! Sign up for FOX 11’s Fast 5 newsletter. And, get breaking news alerts in the FOX 11 News app. Download for iOS or Android.

No injuries were reported. Authorities fielded several calls about stuck elevators in the outage area, according to the LAFD.

Los Angeles Department of Water and Power crews were sent to handle the outage. As of mid-afternoon, the DWP reported 6,500 customers were affected by the outage. Around 5 p.m. roughly 2,000 customers remained without power.